Tried to scan the hd with Testdisk and this is what it says:
TestDisk 7.0. Data Recovery Utility. April 2015
Christophe GRENIER <grenier@cgsecurity.org>
Disk /dev/sda - 82 GB / 76 GiB - CHS 10011 255 63
The harddisk (82 GB / 76 GiB) seems too small! (< 123 GB / 114 GiB )
Check the harddisk size : HD jumpers settings, BIOS detection...
The following partition can't be recovered:
Partition Start End Size in sectors
> HPFS - NTFS 10010 254 63 15008 253 62 80292807
[ Continue ]
NTFS, blocksize=4096, 41 GB / 38 GiB
What can I do? This hd is a 80 gb serial ata. I don't remember the partition's size. One should be around 5 gb or more for Windows 7 and 2 partitions for programs and data. I'm not sure of this because on that computer are 3 hd... one is for IcAROS and it's ok and 2 for Windows. All the partitioning and installation was made years ago, so I don't remember how was partitioned. I should have a backup of windows on the working hd... can I install back that one and with that recover the original partition table?
If this is of any help, this is what the bios says about the hd:
HDS728080PLA380 PF2OA60A